{"id":"CVE-2026-105839","summary":"libmikmod before 3.3.14 Heap Buffer Overflow via OKT Loader OKT_doPBOD","details":"libmikmod before 3.3.14 contains an integer overflow in the Oktalyzer loader OKT_doPBOD() that allows attackers to cause heap buffer overflow via crafted track counts. Attackers can supply an OKT module whose SLEN chunk wraps the 16-bit numtrk value, causing PBOD writes past allocated track pointers for crashes or code execution.","modified":"2026-10-08T07:10:56.977499392Z","published":"2026-10-06T13:35:45.261Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105839.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-190"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105839.json"},{"type":"ADVISORY","url":"https://github.com/sezero/mikmod/blob/libmikmod-3.3.14/libmikmod/NEWS"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105839"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/libmikmod-before-3.3.14-heap-buffer-overflow-via-okt-loader-okt-dopbod"},{"type":"FIX","url":"https://github.com/sezero/mikmod/commit/097b69281fad6ba38a553569e6f55dbfdd71dc2a"},{"type":"PACKAGE","url":"https://github.com/sezero/mikmod"},{"type":"ARTICLE","url":"https://github.com/sezero/mikmod/blob/libmikmod-3.3.13/libmikmod/loaders/load_okt.c#L286"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sezero/mikmod","events":[{"introduced":"0"},{"fixed":"8de19eef766d9ba30a74c19e566edfcd61851dba"},{"fixed":"097b69281fad6ba38a553569e6f55dbfdd71dc2a"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"3.3.14"}],"source":["DESCRIPTION","REFERENCES"]}}],"versions":["libmikmod-3.3.13","mikmod-3.2.9","libmikmod-3.3.12","libmikmod-3.3.11.1","mikmod-3.2.8","libmikmod-3.3.11","libmikmod-3.3.10","libmikmod-3.3.9","mikmod-3.2.7","libmikmod-3.3.8","mikmod-3.2.6","libmikmod-3.3.7","libmikmod-3.3.6","mikmod-3.2.5","libmikmod-3.3.5","libmikmod-3.3.4","mikmod-3.2.4","libmikmod-3.3.3","mikmod-3.2.3","libmikmod-3.3.2","libmikmod-3.3.1","libmikmod-3.2.0-beta4","libmikmod-3.2.0-beta3","mikmod-player-3.2.2-beta1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105839.json","vanir_signatures":[{"target":{"function":"OKT_doPBOD","file":"libmikmod/loaders/load_okt.c"},"deprecated":false,"digest":{"function_hash":"97678307843265104102028907219922324192","length":1139},"id":"CVE-2026-105839-7e3dd492","signature_type":"Function","signature_version":"v1","source":"https://github.com/sezero/mikmod/commit/097b69281fad6ba38a553569e6f55dbfdd71dc2a"},{"deprecated":false,"digest":{"line_hashes":["92826026365282101128354618866003499156","323374848241342461280169452259895649283","305366099722339255530612147407372119327","86870437740577369143386247086992201760"],"threshold":0.9},"id":"CVE-2026-105839-fabfa26d","signature_type":"Line","signature_version":"v1","source":"https://github.com/sezero/mikmod/commit/097b69281fad6ba38a553569e6f55dbfdd71dc2a","target":{"file":"libmikmod/loaders/load_okt.c"}}],"vanir_signatures_modified":"2026-10-08T07:10:56Z"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}